Shuttle



Dec. 27, 1932. F. E. DOUGLAS SHUTTLE Filed Feb. 9, 1932 W/T/YESS. 4 uwtw6. (Segue/v.

A TTORNE Y.

Patented Dec. 27, 1932 A Y sir-Ares PATENT IRE-BRIG npooeLAsornornnaLn,MASSACHUSETTS, sssranoa .TODRAPERCOBPORA: momor:HOPEDALE,MASSACHUSETTS,A ooarommrou or MAlNE 'sno'rrrin "Applicationfiled February 9, 1932. Serial nop-saigsso.

This invention-relates to 1100111 shuttles of I the typeadaptedforaautomatic replenishment "OfthG filling supply and :hasmoreparticu- Ilar reference toithe means'in'such a shuttle ffor holdingthefilling carrier.

' Shuttles of the aforementioned type are lusually provided with a pairof opposed "spring jaws for 'gripping the butt of the'fill-:1ng1carr1er,Jand asO-called cover which may includean inclined guidefor'positioning the incoming filling carrierlongitudinally of theshuttle during the rep'len'ishlng operation.

Various arrangements of springs and inter-- relations between the'spring, cover member and shuttle body have heretofore been devlsed.However, such devices have been subject to the disadvantages that theyloosen in the shuttle body under the impacts incident to repeatedreplenishing operations and that the springs frequently break after acom paratively short interval of use. i

It is accordingly the principal object of my invention to provide ashuttle body, spring, and cover in which the parts are so constructedandinter-related as to materially lessen the possibility of the partsbecoming loose or breaking.

Other objects will in part be hereinafter more specifically enumeratedor will become apparent as the description proceeds. Referring moreparticularly to'the draw- 111g:

Fig. 1 is a plan View of aportion of a shut-' tle embodying myinvention;

Fig. 2 is a longitudinal sectional elevation of the shuttle shown inFig. l and Figs. 3 and 4 are perspective views of the shuttle spring andcover, respectively.

As shown in Figs. 1 and 2 the shuttle includes a body portion 1 providedwith a cavity 2 for housing a filling carrier, or bobbin 3 of anysuitable design. The butt end of the bobbin is provided with rings 4adapted to be received in notches 5 in the opposed faces of spring aws6. These jaws are connected together, preferably by being integrallyformed of one piece of metal, and the thus constituted bobbin supportingspring is located in an upwardly opening cavity 7 in one end of theshuttle body. The cavity 7 is of substantially the same. shape asthefshank portion of "the-spring but is 's'lightly'ilarger than thelatter, whereby the jaws of the:spring are spaced from walls of thecavity; fromtheir inner bobbinzgripping endsitoapoint A adj acent theirouter ends. In other words, the spring, in sofar as the walls ofthecavityare rconcerned, isloosely positioned inthe-shuttle andth'e awsare freeto:move-relativeato each other .during the replenishingoperation.

The shank portion of each jaw 6 is ,provided with an ear 9-.extendinglaterallymutward from the upper-'edge of the respective jaw. These jawseXtend beyond-the confines of the cavity '7 and are :apertured as'at .10for the reception of fastening members.

"The cover includes a rigidv metallic plate' 511 snugly received in theshuttle body and provi ded'with triangularly' related apertures 12, :13and :14 "the Platter .being positioned-to between the-shank portions ofthe jaws and the others Pbeing positioned .to coincide with theapertures 10 in the ears 9 when the plate occupies itsi'iormalgpositionabove thespring.

16;;and :a spring supporting (member 17 formed integrally: with plate11.

.A second rigid :metallicgplate -1*8-is embedded in :the :shuttle ibodybelow the shank zportion'of the spring and ;is provided with "threeIthreaded apertures aligned respective- -ly, with". apertures :12, '13and-14zi1rtheplate 11.

When the spring and cover are assembled :in Ithe shuttle body with theplate 11 positioned over, and preferably though-not necessarily indirect'contac'tfwith, the shank portion offthe spring, suitable fasteningdevices :herein' shown as screws :19 :and 20 maybe passed down throughthe apertures in ltheplate 11,.ears9,:and the shuttlebodyand come ejustabovethe outer-Lend .15 of therspace,

ln' the present instance the :cover alsoincludes :a downwardly inclinedbobbin guide 7 disclosed'is subject to variation'without de It isreadily apparent from the foregoing 7 that the provision of fasteningmembers passing through the rigid plate and the ears on the shuttlespring enables the parts to be very firmly held in the shuttle body,while this fastening arrangement coupled with the fact that. the springis not transversely cramped by through bolts or the walls of the cavitypermits free movement of the jaws 'during the replenishingoperation,thereby lessening spring breakage and precludes the possibility of thejaws bursting the shuttle when they are separated.

It is, of course, to be understood that the specific embodiment of myinvention herein parting from the spirit of the invention as defined inthe appended claims.

' I claim: 1. A shuttle including a body having a bobbin su moi-tin srin located in a cavity in l b D one end thereof, said spring includingopposed bobbin sin )in 'aws the shank ortion of each of which isprovided with a laterally extending'ear, a rigid plate covering saidears, and fastening devices passing through the plate, the ears and "theshuttle body to thereby secure the spring in the said cavity.

2. A. shuttle including a body having a;

bobbin supporting spring located in a cavity in one end thereof, saidspring including op- )osed bobbin ri in 'aws the shank ortion l a b ofeach of which is provided with a laterally ext-ending ear, rigid platespositionedrespecdevices passingt-hrou gh both plates, the ears and theshuttle body to thereby secure the M r tively above and below saidspring andsnugly received in the shuttle body, and fastening spring inthe said cavity.

3. A "shuttleincluding abody having a p bobbin supporting spring locatedin a cavity in one end thereof, said spring including opposed bobbingripping jaws each'of which-is spaced from the walls of said cavitythroughout substantially its entire length,- the shank portion of eachjaw beingprovided with an ear extending'laterally beyond the confines ofthe cavity, a rigid plate covering said ears 5. A shuttle including abobbin having a bobbin supporting spring located in a cavity in one endthereof, said spring including opposed bobbin gripping jaws each ofwhich is spaced from the walls of said cavity throughout substantiallyits entire length, the shank portion of each jaw being provided with anear extending laterally beyond the confines in the cavity, rigid platespositioned respectivelyjabove and below said spring and snugly receivedin the'shuttle body, and fastening devices passing through both plates,the ears and the shuttle body to thereby secure the spring in the saidcavity.

6. A shuttle including a body having an upwardly opening cavity adjacentone end thereby secure the spring'in said cavity.

FREDRIG E. DOUGLAS.

r and snugly received in the shuttle body and fastening devices passingthrough the plate,

the ears and the shuttle body to thereby secure the spring in saidcavity.

4. A shuttle including a body having a bobbin supporting springlocated'in a cavity in one end tiereof, said spring lncluding opposedbobbin gripping aws each of which 1s spaced from the walls of saidcavity from its inner bobbin gripping end to a point adjacent its outerend, the shank portionof each jaw being )rovided with an ear extendinlater- 1 ally beyond the confines of, the cavity, a rigid plate coveringsaid ears, and fastening devices passing through said plate, the earsand the shuttle body to thereby secure the spring in said cavity. f

